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AtkinsRéalis

Process System Engineer

Mississauga, ON, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Experience: A minimum of 7 years of experience in process-system design/analysis, preferably providing design solutions for CANDU nuclear power plants or BWR/PWR markets.
Posting language: English
Posted: Oct 8, 2026

Original job description

Job Description

Overview

AtkinsRéalis is one of Canada's largest private sector nuclear engineering groups. We have been providing a wide range of services to the nuclear industry in Canada and around the world since for more than 60 years. We are proud to be the steward of Canadian CANDU nuclear technology.

Your role

Provide design solutions and assessments for new, updated and modified process systems, structures and components.
Prepare and/or review design documents for Nuclear Power Plants; e.g., Design Calculation, Design Requirements, Assessments, Technical Specifications, Drawings, Bill of Materials, and System Code Classification;
Perform thermal hydraulic evaluations on complex systems.
Prepare and/or review Engineering Quotation Request and Tender Technical Evaluations.
Prepare and/or review Engineering packages.
Perform walkdowns, attend site visits and meetings as required.
Ensure applicable code, standards and regulatory requirements are met.
Ensure adherence to company quality program.
Ensure adherence to project delivery requirements and schedule.
Support Engineering Management with timely updates on engineering progress.
Interface with internal and external stake holders as required.

About you

Engineering degree from an accredited University in Chemical, Engineering, Mechanical Engineering, Nuclear Engineering or Engineering Science.
Registered as a Professional Engineer in Ontario.
A minimum of 7 years of experience in process-system design/analysis, preferably providing design solutions for CANDU nuclear power plants or BWR/PWR markets.
Experience performing heat balance and thermal hydraulic evaluations.
Experience in process system design and layout.
Site experience in construction, or commissioning of plant mechanical systems for nuclear or other heavy industries is an asset.
Experience performing work to nuclear power plants procedures and practices and qualifications for nuclear power plants engineering activities is an asset.
Working knowledge of/experience with CSA B51 standard, ASME Section III, ASME B31.1 codes.
Working knowledge of/experience using nuclear Codes and Standards or regulatory guides, including CSA N285.0 is an asset.
Knowledge of analytical tools used for mechanical and process design (e.g. ANSYS, Mathcad, Flomaster, NUCIRC, CATHENA or similar).
Must have excellent communication and technical writing skills.
Demonstrate good interpersonal skills and the ability to work in a multidisciplinary team environment.

Rewards & benefits

Explore the rewards and benefits that help you thrive – at every stage of your life and your career at AtkinsRéalis in Canada.

Enjoy competitive compensation, employee recognition, and a brilliant range of flexible benefits you can tailor to your health, wellbeing, financial and lifestyle needs.

Make the most of diverse opportunities for training and professional development to grow your skills and expertise.

And take advantage of our hybrid working culture and generous time-off policies to balance a fulfilling career with your personal life.

Be rewarded. Find out more.

About AtkinsRéalis

We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Additional information

AtkinsRéalis cares about your privacy. AtkinsRéalis and other subsidiary or affiliated companies of AtkinsRéalis (referred to throughout as “AtkinsRéalis”) are committed to protecting your privacy. Please consult our Privacy Notice on our Careers site to know more about how we collect, use, and transfer your Personal Data.

By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice.

Appropriate accommodation will be provided upon request throughout the recruitment and hiring process as required by Company policy and the Accessibility for Ontarians with Disabilities Act (AODA).

Successful applicants will be notified about AtkinsRéalis’ accommodation policies at the time the employment offer is extended, and the information will be shared with new personnel during the onboarding process.

Worker Type

Employee

Job Type

Regular

At AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.

Apply About employer

More about this job

Responsibilities

Provide design solutions and assessments for nuclear process systems, structures, and components. Prepare and review technical design documents, engineering packages, and perform thermal hydraulic evaluations.

Requirements

Requires an engineering degree in Chemical, Mechanical, or Nuclear Engineering and registration as a Professional Engineer in Ontario. Candidates must have at least 7 years of experience in process-system design and analysis within the nuclear industry.

Skills

Process system design
Thermal hydraulic evaluation
Nuclear engineering
CANDU technology
Technical writing
Project delivery
Regulatory compliance
Engineering design
Mechanical systems
ANSYS
Mathcad
Flomaster
NUCIRC
CATHENA
ASME codes
CSA standards

Benefits

Competitive compensation
Employee recognition
Flexible benefits
Training and professional development
Hybrid working culture
Generous time-off policies

Visa sponsorship

Not detected in the job text

Keywords

Process System Engineer
Nuclear Engineering
CANDU
Thermal Hydraulic
Design Calculation
Technical Specifications
Bill of Materials
System Code Classification
Engineering Quotation
Tender Technical Evaluations
CSA B51
ASME Section III
ASME B31.1
CSA N285.0
ANSYS
Mathcad
Flomaster
NUCIRC
CATHENA
Mechanical Systems
Plant Commissioning
Regulatory Requirements
Quality Program
Professional Engineer
Ontario

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